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중금속 오염토의 Electrokinetic 정화 시 간극수압 발현의 수치 해석

Title
중금속 오염토의 Electrokinetic 정화 시 간극수압 발현의 수치 해석
Other Titles
Numerical Analysis of Pore Water Pressure During Electrokinetic Remediation of Contaminated Soil by Heavy Metal
Author
김수삼
Keywords
Electrokinetic 정화(electrokinetic remediation); 제타포텐셜(zeta potential); 전압경사(voltage gradient); 음의 간극수압( negative pore pressure)
Issue Date
2001-11
Publisher
대한토목학회
Citation
대한토목학회논문집 C, v. 21, no. 6C, page. 681-687
Abstract
본 논문은 중금속 오염지반의 정화를 목적으로,Electrokinetic 기법을 적용 할 때 지반 내에서 발생하는 긴극수압 발현 현상을 규명하고 이의 예측을 위하며,Electrokinetic 처리 동안 변화하는 시료의 전압,전류, 제타포텐셜,pH분포 등의 물리 화학적 특성변화를 고려한 유한차분 수치 해석 프로그램을 개발하여 실험 결 과와 비교, 검토하였다. 수치해석 프로그램의 시물레이션 결과,간극반경에 따라 발현된 간극수압의 크기는 민 감하게 변화하였으며,음극부근(양극으로부터 거리비,x/L=0.8)에서 최대 부의 간극수압이 발현되었으며 변화 추세는 실험결과와 일치하였다. The purpose of this study was to characterize the pore water pressure development during electrokinetic removal of heavy metal contaminated ground and to predict this phenomenon. To do these, FDM numerical model was developed considering physical and chemical characteristics such as voltage gradient, electrical current, zeta potential and pH variations in soil during electrokinetic remediation and compared with laboratory tests results. Developed FDM numerical model presented following results; the pore water pressure was sensitive to the radius of capillary and maximum negative pore water pressure developed in the vicinity of the cathode (i.e. normalized distance from anode, x/L=0.8). These tendencies showed good agreement with experimental results.
URI
https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE01222617?https://repository.hanyang.ac.kr/handle/20.500.11754/161071
ISSN
1015-6348
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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